Program of Development on Protection Coordination for Impedance Fault in Power Transmission System

송전선로 지락사고 보호협조 프로그램 개발

In this paper we propose to develop program witch can improve the detecting capability of impedance fault in power transmission system. It is difficult to setting relay because the different type relays have many setting values to coordinate with each other. The proposed program assist a user in setting relay with convenience grapic environment and database.